Accession Number : AD1032481


Title :   Radar Measurements of Ocean Surface Waves using Proper Orthogonal Decomposition


Descriptive Note : Technical Report,22 Jan 2015,31 Dec 2016


Corporate Author : Coastal Carolina University Conway United States


Personal Author(s) : Hackett,Erin E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1032481.pdf


Report Date : 30 Mar 2017


Pagination or Media Count : 24


Abstract : Current methods to extract information about the ocean surface wave field from radar measurements primarily rely on use of Fourier transforms (FFT) and filtering spectra on the linear dispersion relationship for ocean surface waves. This report discusses development and evaluation of the use of proper orthogonal decomposition (POD) as an alternative method. Results show similar performance of conventional FFT-based techniques and POD methods for estimation of wave statistics; however, evaluations show improved performance of the POD method for phase-resolved wave fields, particularly for wave fields with high energy off the linear dispersion relationship


Descriptors :   surface warfare , ocean waves , DOPPLER RADAR , measurement , decomposition , FAST FOURIER TRANSFORMS , statistics , velocity , accuracy , correlation , coefficients


Subject Categories : Active & Passive Radar Detection & Equipment
      Physical and Dynamic Oceanography
      Numerical Mathematics


Distribution Statement : APPROVED FOR PUBLIC RELEASE